For Danamon Online Banking payment method there aren’t any test data available, but you can see how it works with the payment flow given below.
Danamon Online Banking Payment Flow
The customer enters his email address, name and phone number.
The payment details are displayed and the customer can proceed with the payment on Danamon Online Banking page.
The customer logs in to his account with his User ID and password and completes the payment.
Upon completion of the payment flow, the customer is redirected back to your ReturnURL.